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Finding the Fourth Proportional to 250,620.48, 375,930.72 and 125,874

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Solution

The fourth proportional to 250,620.48, 375,930.72 and 125,874 is: 188,811

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,620.48 : 375,930.72 = 125,874 : x
  2. Step 2: Convert to fraction form
    250,620.48/375,930.72 = 125,874/x
  3. Step 3: Cross multiply
    250,620.48x = 375,930.72 × 125,874
  4. Step 4: Simplify right side
    250,620.48x = 47,319,903,449.28
  5. Step 5: Solve for x
    x = 47,319,903,449.28/250,620.48
  6. Step 6: Final answer
    x = 188,811

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.